The real reason people get pissed is the existence of the pics in the first place. With the exception of the few high-school kids that do this for beer money, most of us see plenty of this stuff day in and day out and don't need it forced upon us front and center in emails.
You have new stuff, great. Send me an email with a link and I'll look at it if/when I feel like it. If you're already mailing existing customers then they know who you are. You don't need to court them with pussy.
